Logging-block.



o0. 0 9 1 .QW R. A M .D ...L T N E T A P. 7. 0 9 1 Km WOW LT.. NDQD E TGM ATNLP Mw-m T.. T 0 Lm .n M www .n.. 0 oor 0 oo oo ul N v www? unrnsrars JAMES MATTSON, OF REDMOND, WASHINGTON.

LOGGING-BLOCK.

Specification of Letters Patent.

.Patented March 3, 1908.

Applica-inn me@ June 1.1907. serai No. 376.821.

To all whom t may concern:

Be it known that I, JAMES MATTsoN, citizen ofthe United States, residing at Redmond, in the county of King and State of IVashington, have invented certain new and useful Improvements in Logging-Blocks; and I do hereby declare the following to be 'a full, clear, and exact description of the invention, such as will enable others slrilledin the art to which it appertains to make and use. the same.

This invention relates to improvements in blocks, and particularly to logging blocks that are susceptible of being opened for the removal of the cable at any time.

The invention further comprises the production of a block formed with ears or guards for holdingthe cable at all times upon a pulley and designed to be removed whenever it is desirable to remove the cable from the pulley.

The invention further comprises the production of pivotally mounted ears or guards for holding a pulley in position, and. a clevis for a draft member for securing the block in position and for forming means upon which the ears may be pivoted.

The object of the invention is the production of a block formed with a plurality of ears for sustaining a pulley and for guiding a cable thereover, one of the ears being designed to be removed for easy removal of the cable without the necessity of drawing the same entirely through the block.

Another object in view is the production of a block having a pivotally mounted ear or guide and a clevis upon which the same is mounted that. is designed to hold the blocl; in position and to form a draft member.

A still further object in view is the production of a block formed with means for sup-5 )ortino' a ulle f and a rece )tacle for accommodating the head of a journal or pin that supports the pulley and for accommodating lubricant for lubricating the bearing of the pulley.

W'ith these and further ob] ects in view the invention comprises certain novel constructions, combinations and arrangements of parts as will be hereinafter fully described and claimed.

In the accompanying drawing-Figure 1 is aside elevation of a block formed accoording to the present invention. Fig. 2 is an edge view of 1, certain parts being broken away to disclose certain features of the invention. Fig. 3 is an enlarged, detail, fragmentary view showing the end of the journal pin and surrounding parts.

In constructing a block according to the present invention, I provide a clevis 1 that has pivotally mounted thereon ears or guards 2 and 3. The guards 2 and 3 are pivotally secured to the clevis 1 preferably by substantially constructed pins or liournal members 4 and 5. rIhe guards 2 and 3 are formed with ears 6 and 7 through which pins 4 and 5 are designed to pass. Mounted in the guards or ears 2 and 3 is a pulley 8 which loosely rests upon a journal or pin 9 that passes through the ears and is held in position by a suitable pin 10. The apertures formed in ears 2 and 3 are of sufficient size to accommodate pin 9 and permit the same to rest loosely therein, so that when pin 9 is forced downward until the outer' endv is parallel with the surface of guide 2, guide 2 may be swung upon its pivot 5, and if desired the clevis 1 may be swung upon pivot 7 so as to move guide 2 clear of pulley S. This will permit the easy removal of the cable positioned 'upon pulley 8 without drawing the same entirely through the block. It will be observed that guides 2 and 3 are formed with inclosing or retaining portions 11 and 12 for preventing the accidental slipping off or removal of the cable when the block is in use.

Guard or ear 3 is formed with a receptacle 13 which is designed to hold lubricant for lubricating pin 9 and pulley 8. In providing the lubricant any stiff oil may be used that will not flow freely, but upon slight heating will become liquid or slightly liquid and automatically lubricate the pulley. A suitable cap 14 is provided for holding the lubricant in place, and for also, if desirable, forcing the same into the bearing of pulley 8 through apertures 15. Pin 9 is preferably formed on one end with a squared portion 16 which is designed to fit in a countersunlr or hollowed out portion 17 in guard 3 so as to prevent the pin from rotating, the countersunk portion 17 being preferably oblong.

In operation when it is desired to remove the cable from the pulley, all that will be necessary is to remove pin 10 from pin 9 and force pin 9 until the end thereof is level With guard 2 or if desirable entirely remove the pin, and then move guard 2 outward as shown in dotted lines in Fig. 2, or if desirable may be moved to a more open position. When the guard 2 has been thus moved from off pulley 8, the cable may be easily taken off the pulley after it has been given a small amount of slack. This will obviate the necessity of drawing the cables through the pulley when it is desired to remove the same.

n logging camps and elsewhere where long cables are used, it is very undesirable to draw the entire cable through the block and in order to overcome this objection, I have revided the present invention with guar s 2 and 3 that may be swung outward for per mitting the cables to be removed without drawing the same through the block.

What I claim is 1. A device of the class described, comprising a pulley, a journal therefor, guards for supporting said journal and for preventing a cable 'from being accidentally removed from said pulley cable retaining portions formed on the upper part of the sides of the guards, said retaining portions extending laterally and being provided with crescent shaped recesses fitting a segment of the pulley and draft means secured to said guards.

2. A device of the class described, comprising a pulley, guards therefor, a clevis pivotally secured to each of said guards, cable retaining portions formed on the upper part of the sides of the guards said retaining portions extending laterally and being provided with crescent shaped recesses litting a segment of the pulley, means for holding said guards in position, and means for permitting one of said guards to be removed from said pulley.

8. A device of the class described, comprising a pulley, draft means pivotally secured to said guards, a journal for said pulley supported by said guards, a lubricating receptacle, and means for closing the receptacle and holding the journal in position, thereby preventing its accidental displacement when one of the guards is opened.

4. A device of the class described, comprising a pulley, draft means, pivotally mounted guards secured thereto, means for permitting one of said guards to be removed for permitting the removal of the cable suported by said pulley, a journal for said puley mountedin said guards, one of said guards being formed with a cut-away portion for accommodating the end of said journal and said pulley, cable retaining portions formed on the upper parts of the guards, extending laterally,y and being provided with crescent shaped recesses iitting a segment of the pulley and means for permitting one of said guards to be moved from said pulley for permitting the removal of a cable designed to be passed thereover.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES MATTSON.

Witnesses 2 G. WARD KEMP, S. D. WrnGA'rE. 

